Final answer:
The probability that Juan will only be served tacos of pastor and steak is 1/36.
Step-by-step explanation:
To determine the probability that Juan will only be served tacos of pastor and steak, we need to find the probability of getting a pastor taco and multiply it by the probability of getting a steak taco. Since there are 12 flavors of tacos, and only 2 of those flavors are pastor and steak, the probability of getting a pastor taco is 2/12 or 1/6. Similarly, the probability of getting a steak taco is also 1/6. To find the probability of getting both tacos, we multiply the probabilities together: 1/6 x 1/6 = 1/36.